Patents by Inventor Hubert Havenith
Hubert Havenith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8327667Abstract: A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.Type: GrantFiled: January 11, 2006Date of Patent: December 11, 2012Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
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Publication number: 20080190143Abstract: A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.Type: ApplicationFiled: January 11, 2006Publication date: August 14, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Gunther Schall
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Patent number: 7302813Abstract: In a method for bending, in pairs, panes placed one upon the other, heated to their softening temperature, the pair or panes is deposited on a bending frame and prebent under action of the force of gravity. The prebent pair of panes is transferred onto a suction bending mold with a concave forming face, the underside of the lowermost pane being supported at least on the peripheral edge of the forming face. By applying a depression for a predetermined length of time, the air is sucked out of the intermediate space between the underside of the lowermost pane and the suction bending mold, and the pair of panes is pressed by atmospheric pressure onto the concave forming face of the suction bending mold. After the end of the application of the depression, the finished molded pair of panes is transferred from the suction bending mold onto a transport device and is cooled.Type: GrantFiled: February 6, 2002Date of Patent: December 4, 2007Assignee: Saint-Gobain Glass FranceInventors: Michaël Balduin, Michaël Labrot, Hubert Havenith
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Publication number: 20040129028Abstract: In a method for bending, in pairs, panes placed one upon the other, heated to their softening temperature:Type: ApplicationFiled: January 20, 2004Publication date: July 8, 2004Inventors: Mich?auml;el Balduin, Mich?auml;el Labrot, Hubert Havenith
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Patent number: 6432240Abstract: A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.Type: GrantFiled: October 29, 2001Date of Patent: August 13, 2002Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Publication number: 20020043324Abstract: A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.Type: ApplicationFiled: October 29, 2001Publication date: April 18, 2002Applicant: Saint-Gobain VitrageInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Patent number: 6342116Abstract: A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.Type: GrantFiled: January 27, 2000Date of Patent: January 29, 2002Assignee: Saint-Gobain VitrageInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Patent number: 6340045Abstract: A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.Type: GrantFiled: February 23, 2001Date of Patent: January 22, 2002Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Patent number: 6336490Abstract: The present document describes a process for manufacturing a pane of laminated glass without recourse to an autoclave. The pack of layers are composed of stacked layers (6, 7, 8), is raised to the softening temperature of the thermoplastic interlayer of the pack of layers in a preheat channel (1). The preheated pack of layers is put under vacuum in a vacuum assembly station (2) for the purpose of extracting the gas from the spaces separating the layers (6, 7, 8). After the gas has been extracted, the edge of the pack of layers, which is held under vacuum, is mechanically compressed inside the vacuum box and is thus sealed. Finally, the pack of layers is brought to atmospheric pressure and its temperature further increased in a postheat channel (4).Type: GrantFiled: June 6, 2001Date of Patent: January 8, 2002Assignee: Saint-Gobain VitrageInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Publication number: 20010042585Abstract: The present document describes a process for manufacturing a pane of laminated glass without recourse to an autoclave. The pack of layers are composed of stacked layers (6, 7, 8), is raised to the softening temperature of the thermoplastic interlayer of the pack of layers in a preheat channel (1). The preheated pack of layers is put under vacuum in a vacuum assembly station (2) for the purpose of extracting the gas from the spaces separating the layers (6, 7, 8). After the gas has been extracted, the edge of the pack of layers, which is held under vacuum, is mechanically compressed inside the vacuum box and is thus sealed. Finally, the pack of layers is brought to atmospheric pressure and its temperature further increased in a postheat channel (4).Type: ApplicationFiled: June 6, 2001Publication date: November 22, 2001Applicant: SAINT-GOBAIN VITRAGEInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Patent number: 6280547Abstract: The present document describes a process for manufacturing a pane of laminated glass without recourse to an autoclave. The pack of layers are composed of stacked layers (6, 7, 8), is raised to the softening temperature of the thermoplastic interlayer of the pack of layers in a preheat channel (1). The preheated pack of layers is put under vacuum in a vacuum assembly station (2) for the purpose of extracting the gas from the spaces separating the layers (6, 7, 8). After the gas has been extracted, the edge of the pack of layers, which is heid under vacuum, is mechanically compressed inside the vacuum box and is thus sealed. Finally, the pack of layers is brought to atmospheric pressure and its temperature further increased in a postheat channel (4).Type: GrantFiled: August 27, 1999Date of Patent: August 28, 2001Assignee: Saint-Gobain VitrageInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Publication number: 20010007270Abstract: A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.Type: ApplicationFiled: February 23, 2001Publication date: July 12, 2001Applicant: Saint-Gobain VitrageInventors: Michael Balduin, Hubert Havenith, Michael Labrot
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Patent number: 5324373Abstract: The subject of this invention is a method of making a curved glass pane of laminated glass, such as an automobile windshield, in which one of the two single glass sheets is provided, on the surface bearing against an intermediate layer, with a film of a baking finish. The baking finish is applied onto the inner face of the single glass sheet intended for the outside. The glass sheet, provided with the dried baking finish (i.e., a colored film), is laid, with the film upwards, onto the single glass sheet intended for the inside. The pair of glass sheets, in this arrangement, is prebent on a bending frame with simultaneous baking-in of the colored film. Subsequently, the two glass sheets are transposed and, in this transposed arrangement with the colored film on the inside, are finally bent in a second bending operation on a bending frame corresponding to the final shape of the outer sheet.Type: GrantFiled: January 19, 1993Date of Patent: June 28, 1994Assignee: Saint-Gobain Vitrage InternationalInventors: Manfred Gillner, Hubert Havenith, Luc Vanaschen
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Patent number: 5203904Abstract: In the manufacture of bent or curved car glass plates or panes with more markedly bent areas, the latter are additionally locally heated with acetylene--oxygen, or acetylene--air, flames. An apparatus suitable for this includes a continuous furnace (1) and a bending station (3) with a bending mold (41) positioned above the conveying plane of the glass plates (9), as well as a ring mold (45) which serves as a countermold and a conveying ring and which is located on a movable carriage (44). In the areas of more marked bending below the ring mold (45) are provided burner tubes (42), which are supplied via flexible hoses with the acetylene gas and the combustion air or oxygen. Alternatively, the plates are locally heated in a transition zone (7) located between the furnace and the bending station by a gas burner (8), and thereafter pressed in the bending station by an upper bending mold (14) and a lower ring mold (16).Type: GrantFiled: August 16, 1991Date of Patent: April 20, 1993Assignee: Saint-Gobain Vitrage InternationalInventors: Luc Vanachen, Hans-Werner Kuster, Hubert Havenith, Wilfried Korsten
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Patent number: 5048168Abstract: A ceramic transport shaft for a furnace includes a ceramic shaft member and a metal end cap into which an end of the shaft member is fitted with an annular gap between the shaft member and the end cap. A sleeve fills the gap. The shaft member, the end cap and the sleeve have such linear thermal coefficients of expansion, and the wall of the sleeve has such a radial thickness, that a change in the radial size of the gap due to thermal expansion of the shaft member and the end cap is at least equalled by a change in the radial thickness of the sleeve wall. The sleeve has one or more axial slots to absorb the circumferential expansion thereof during heating.Type: GrantFiled: July 17, 1990Date of Patent: September 17, 1991Assignee: Saint-Gobain Vitrage InternationalInventors: Luc Vanaschen, Hans-Werner Kuster, Hubert Havenith, Gerhard Schubert
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Patent number: 5022906Abstract: A process and device for obtaining bent-tempered motor vehicle glazings exhibiting a greatly bent marginal zone comprises a glass sheet heated in a furnace and shaped by pressing the glass sheet between a solid upper form and a bending frame, of which at least one side part is bent during pressing. The side part is covered with an elastically deformable felt material and is removed from the glass sheet during tempering, while the main part of the glass sheet remains supported by the bending frame which also serves as a tempering frame.Type: GrantFiled: December 13, 1989Date of Patent: June 11, 1991Assignee: Saint-Gobain Vitrage InternationalInventors: Luc Vanaschen, Hans-Werner Kuster, Hubert Havenith, Benoit D'Iribarne
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Patent number: 4915722Abstract: A process for bending a glass sheet, in particular one for motor vehicles, with curved areas having small radii of curvature. The bending device used is a bending press having a male type mold and a female type mold. The female type mold consists of at least two mold parts hinged together. After part of the glass sheet heated to bending temperature has been received by the bending press, at least one swivelling mold part of the female type mold is swivelled around the swivel axis, against the male type mold. An adjustable electric motor serves as the drive motor to move the swivelling mold parts. The angular velocity of the swivel action of the swivelling mold parts during the bending process is adjusted as a function of the temperature of the glass sheet and the desired degree of deformation.Type: GrantFiled: February 3, 1989Date of Patent: April 10, 1990Assignee: Saint-Gobain VitrageInventors: Hubert Havenith, Herbert Radermacher, Hans-Werner Nowoczyn, Benoit D'Iribarne, Hans-Werner Kuster, Luc Vanaschen